Vanguard International Semiconductor Corporation, together with its subsidiaries, engages in manufacturing, selling, packaging, testing, and computer-aided design of integrated circuits and other semiconductor devices in Taiwan and internationally. The company offers various foundry process technologies, including high voltage, ultra-high voltage, bipolar CMOS DMOS, silicon on insulator, discrete, sensors, micro electro mechanical system, and embedded flash, as well as manufactures and sells masks. It also offers multiple project wafer services; mask services comprising frame generation, mask making, tape out/itapeout, and mask repairing; backend services, including front-side metallization, back side grinding and metallization, chip probe, GaN back end, WLCSP and RDL, and backend solutions; and automotive services, as well as provides intelligent manufacturing and management services. Vanguard International Semiconductor Corporation was incorporated in 1994 and is headquartered in Hsinchu City, Taiwan.